INT 31 P - CauseWay - "GetMemLinear32" - ALLOCATE MEMORY WITHOUT SELECTOR
	AX = FF11h
	ECX = size of block in bytes
Return: CF clear if successful
	    ESI = linear address of allocated block
	CF set on error
Note:	this function may return addresses above 16M
SeeAlso: AX=FF0Ch,AX=FF10h,AX=FF13h,AX=FF14h